CN105734684A - Degumming agent special for ramie and preparation method and application of degumming agent - Google Patents
Degumming agent special for ramie and preparation method and application of degumming agent Download PDFInfo
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- CN105734684A CN105734684A CN201610202506.XA CN201610202506A CN105734684A CN 105734684 A CN105734684 A CN 105734684A CN 201610202506 A CN201610202506 A CN 201610202506A CN 105734684 A CN105734684 A CN 105734684A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
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Abstract
The invention discloses a degumming agent special for ramie.The degumming agent is prepared from, by weight, 130-170 parts of sodium silicate, 8-10 parts of a chelating agent, 1-3 parts of magnesium sulfate, 130-170 parts of liquid caustic soda, 11-15 parts of a biological enzyme and 655-695 parts of water.A preparation method comprises the steps that after sodium silicate, the chelating agent, magnesium sulfate and the liquid caustic soda are diluted by adding the water, the biological enzyme is put, uniform stirring is performed, and then a saturated stock solution of the degumming agent special for the ramie is obtained; the saturated stock solution is diluted by adding 14 times of the water to obtain a diluted solution, and after the diluted solution is heated to 80 DEG C-90 DEG C, 280-320 parts of original ramie is added into the diluted solution for degumming treatment, wherein the degumming time is 50-70 minutes.Accordingly, degumming treatment is performed on the ramie by selecting the suitable degumming agent and degumming method, therefore, not only can the degumming time be saved, but also the water using amount can be decreased, the cost is saved, and the high application value is achieved.
Description
Technical field
The invention belongs to Boehmeria technical field, be specifically related to special degumming agent of Boehmeria and its preparation method and application.
Background technology
Boehmeria (Boehmeria nivea) is Urticaceae perennial root, herbaceos perennial, originates in China, is the national treasure of China.
China's Boehmeria yield accounts for the 90% of whole world Boehmeria yield, containing accounting for the fiber of Boehmeria weight 70% in Boehmeria, its fiber length,
Intensity is big, is the important source material in textile industry.In various Plant fiber, Ramie Fiber Quality is best.Ramee is that fiber crops are fine
Uniquely existing with ultimate fibre state in dimension, ramee length is long, good springiness, and ultimate fibre length is up to 600MM, Er Qiejian
Tough, it is rich in gloss, bright, it is not easy to fade.Pure spin or blending becomes various thickness cloth, the most attractive in appearance but also durable.Boehmeria
The tension stress intensity of fiber is higher 8-9 times than Cotton Gossypii, can do aeroplane fabric, the raw material of parachute and manufacture canvas, aviation
Rope, grenade bracing wire, the various ropes such as linen thread.Ramee is soaking when, and intensity increases especially, absorb and
Dissipate moisture fast, and there is corrosion resistant, be difficult to mouldy characteristic, be the good material manufacturing waterproof cloth, fishnet etc..Ramee
Dispel the heat the fastest, it is not easy to conduct electricity, therefore, it can do the liner of tire, the foreskin of electric wire, the transmission band etc. of machine.Boehmeria is short
Fiber can be the raw material of fine paper, gunpowder, artificial silk etc., again can weavening carpet, gunnysack etc..
It is good that ramee has strength, the cloth moisture absorption rapid heat dissipation of making, and the natural excellent product of its uniqueness is constantly subjected to international city
The favor of field, owing to ramee containing the colloid being made up of pectin, hemicellulose and lignin, therefore de-in Boehmeria processing
Glue step is the most key, and degumming tech directly affects the quality of fiber.In the processing of the primary product degummed ramie of ramee,
To be removed by the ingredient breakdown such as pectin and lignin, to retain cellulose, conventional chemical Degumming method is to use strong acid to soak and strong
Alkali High Temperature High Pressure boiling-off makes pectin and lignin decompose, and is then rinsed beating, due to the immersion boiling-off through strong acid and highly basic
Beating with flushing, the corresponding cellulose retained destroys greatly, and the damage of a lot of celluloses is rinsed loss, is allowed to making of degummed ramie
Rate reduces, and the fiber strength in postorder spinning and weaving process declines, and the filoplume causing yarn count bar dry is too much, directly affects and knits
The quality made and print and dye, meanwhile, in scouring processes, the waste water environmental pollution of discharge is very big, though there being biological degumming skill in recent years
The appearance of art, but the fermentation fermentation vat area that biological degumming needs is too big, the production cycle is oversize, cannot adapt at all serialization,
The operation of scale needs.And ramee is a kind of phloem fiber, after degumming process, few fibers still has Arisaema balansae Engl.
Spot.Remove Arisaema balansae Engl. spot technology difficulty relatively big, and strength damage ratio is more serious.Therefore, strong oxidizer can only be used, through cold
The double drift of heat also combines pickling destruction pigment therein, reaches to eliminate Arisaema balansae Engl. spot, and ramee quality is hard, rigidity is strong, cloth cover is fine and soft
Mao Duo, thus there is prodding and itching feeling；In printing and dyeing pre-treatment processing, the stretching repeatedly of warp-wise makes fabric excessively plate with roll compacting frequently
Knot.
The Chinese patent of Application No. 200710114687.1 discloses China grass degumming compound enzymic preparation and preparation method thereof and answers
With, it is pointed out that with alkaline pectase, glucanase, neutral protease, xylanase and mannase at degumming process,
All enzymes carry out under identical conditions enzyme digestion reaction, and what this condition can not meet all enzymes is in most highly active, causes enzymolysis
Efficiency is low；And major part enzyme inactivation in enzymolysis, therefore enzymolysis solution can not be reused.
The Chinese patent of Application No. 201210102187.7 discloses a kind of method of China grass degumming, and specifically employing weight ratio is
3:1:1 acid pectase, acidic cellulase and acid protease, be 4-6 at pH, and temperature is entered under conditions of being 30-60 DEG C
Row enzymolysis, but the method for this simple enzymolysis carries out the problem that the method for degumming exists response time length.
Summary of the invention
For present situation, the present invention provides a kind of special degumming agent of Boehmeria, has cost little during degumming, and the time is short, uses
The advantage that the water yield is few.
To achieve these goals, the present invention uses following technical scheme:
A kind of special degumming agent of Boehmeria, described degumming agent is composed of the following components in parts by weight: sodium silicate 130～170 parts, boil together
Agent 8～10 parts, magnesium sulfate 1～3 parts, liquid caustic soda 130～170 parts, enzyme 11～15 parts and water 655～695 parts.
Preferably, described degumming agent is composed of the following components in parts by weight: sodium silicate 140～160 parts, boil together agent 8～10 parts, sulfur
Acid magnesium 1～3 parts, liquid caustic soda 140～160 parts, enzyme 12～14 parts and water 665～685 parts.
It is highly preferred that described degumming agent is composed of the following components in parts by weight: sodium silicate 150 parts, boil together agent 10 parts, magnesium sulfate
2 parts, liquid caustic soda 150 parts, enzyme 13 parts and 675 parts of water.
Wherein, the agent that boils together described in is metal-chelator, preferably citric acid or ethylenediaminetetraacetic acid.
The concentration of described liquid caustic soda (i.e. the sodium hydroxide of liquid state, also known as Caustic soda, caustic soda) is 30～32%, preferably 30%.
Preferably, enzyme be cellulase, hemicellulase, lignoenzyme and pectase with (2～4): (1～2): 1:(2～3)
Mass ratio mix.It is highly preferred that the mass ratio of described cellulase, hemicellulase, lignoenzyme and pectase is
3:1:1:2。
The preparation method of the special degumming agent of aforementioned Boehmeria, comprises the steps:
First by sodium silicate 130～170 parts, agent 8 is boiled together～10 parts, magnesium sulfate 1～3 parts, liquid caustic soda 130～170 parts add 655～695
After the dilution of part water, then put into enzyme 11～15 parts, stir, both the saturated stock solution of the special degumming agent of Boehmeria.
The method that the special degumming agent of aforementioned Boehmeria carries out degumming to Boehmeria, particularly as follows: add special for the Boehmeria saturated stock solution of degumming agent
Water is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14, add after then diluent being heated to 80 DEG C-90 DEG C
Entering raw ramie 280-320 part and carry out degumming, usually time is 50～70 minutes.Preferably, described raw ramie is 300 parts, described degumming
Time is 60 minutes.
The invention has the beneficial effects as follows:
Chemical Degumming agent of the present invention carries out selecting according to the biological characteristics of Boehmeria, and degumming effect is obvious, and product obtains
Rate is high.
The present invention selects the method for suitable degumming that Boehmeria is carried out degumming process, is possible not only to save usually time, it is also possible to subtract
The consumption of few water, cost-effective, there is higher using value.
Detailed description of the invention
Experimental technique used in following embodiment if no special instructions, is conventional method.
Material used in following embodiment, reagent etc., if no special instructions, the most commercially obtain.
The specific embodiment of the present invention is described in more detail below.Although the present invention closely lists some embodiments, but
Should be appreciated that and may be realized in various forms the present invention and should not limited by embodiments set forth here.On the contrary, it is provided that these
Embodiment is able to be best understood from the present invention, and can be by the skill conveying to this area complete for the scope of the present invention
Art personnel.
It should be noted that as in the middle of description and claim in the whole text mentioned " comprising " or " including " be one open
Formula term, therefore " comprise but be not limited to " should be construed to.Description subsequent descriptions is to implement the better embodiment of the present invention, so
Described description is for the purpose of the rule of description, is not limited to the scope of the present invention.Protection scope of the present invention is worked as
Depending on claims, defined person is as the criterion.
For ease of the understanding to the embodiment of the present invention, as a example by several specific embodiments, it is further explained explanation below.
Embodiment 1
A kind of special degumming agent of Boehmeria, described degumming agent is composed of the following components in parts by weight: sodium silicate 130 parts, boil together agent 8
Part, 3 parts of magnesium sulfate, liquid caustic soda 170 parts, enzyme 11 parts and 678 parts of water.
Wherein, the agent that boils together described in is citric acid.
The concentration of described liquid caustic soda (i.e. the sodium hydroxide of liquid, also known as Caustic soda, caustic soda) is 31%.
Described enzyme is that cellulase, hemicellulase, lignoenzyme and pectase mix with the mass ratio of 2:1:1:2.
The preparation method of the special degumming agent of aforementioned Boehmeria, comprises the steps:
First after sodium silicate 130 parts, the agent 8 parts that boils together, 3 parts of magnesium sulfate, liquid caustic soda 170 parts being added 678 parts of water dilutions, then
Put into enzyme 11 parts, stir, both obtain the saturated stock solution 1000 parts of the special degumming agent of Boehmeria.
The method that the special degumming agent of aforementioned Boehmeria carries out degumming to Boehmeria, particularly as follows:
Special for Boehmeria degumming agent saturated stock solution addition water is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14,
Then adding raw ramie 280 parts after diluent being heated to 80 DEG C and carry out degumming, usually time is 50 minutes.
Embodiment 2
A kind of special degumming agent of Boehmeria, described degumming agent is composed of the following components in parts by weight: sodium silicate 170 parts, boil together agent 10
Part, 1 part of magnesium sulfate, liquid caustic soda 130 parts, enzyme 15 parts and 674 parts of water.
Wherein, the agent that boils together described in is ethylenediaminetetraacetic acid.
The concentration of described liquid caustic soda (i.e. the sodium hydroxide of liquid, also known as Caustic soda, caustic soda) is 31%.
Described enzyme is that cellulase, hemicellulase, lignoenzyme and pectase mix with the mass ratio of 4:2:1:2.
The preparation method of the special degumming agent of aforementioned Boehmeria, comprises the steps:
First after sodium silicate 170 parts, the agent 10 parts that boils together, 1 part of magnesium sulfate, liquid caustic soda 130 parts being added 674 parts of water dilutions, then
Put into enzyme 15 parts, stir, both obtain the saturated stock solution of the special degumming agent of Boehmeria.
The method that the special degumming agent of aforementioned Boehmeria carries out degumming to Boehmeria, particularly as follows:
Special for Boehmeria degumming agent saturated stock solution addition water is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14,
Then adding raw ramie 320 parts after diluent being heated to 90 DEG C and carry out degumming, usually time is 70 minutes.
Embodiment 3
A kind of special degumming agent of Boehmeria, described degumming agent is composed of the following components in parts by weight: sodium silicate 140 parts, boil together agent 9
Part, 2 parts of magnesium sulfate, liquid caustic soda 160 parts, enzyme 13 parts and 675 parts of water.
Wherein, boil together described in agent citric acid.
The concentration of described liquid caustic soda (i.e. the sodium hydroxide of liquid, also known as Caustic soda, caustic soda) is 30%.
Described enzyme is that cellulase, hemicellulase, lignoenzyme and pectase mix with the mass ratio of 3:2:1:3.
The preparation method of the special degumming agent of aforementioned Boehmeria, comprises the steps:
First after sodium silicate 140 parts, the agent 9 parts that boils together, 2 parts of magnesium sulfate, liquid caustic soda 160 parts being added 675 parts of water dilutions, then
Put into enzyme 13 parts, stir, both obtain the saturated stock solution of the special degumming agent of Boehmeria.
The method that the special degumming agent of aforementioned Boehmeria carries out degumming to Boehmeria, particularly as follows:
Special for Boehmeria degumming agent saturated stock solution addition water is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14,
Then adding raw ramie 300 parts after diluent being heated to 85 DEG C and carry out degumming, usually time is 60 minutes.
Embodiment 4
A kind of special degumming agent of Boehmeria, described degumming agent is composed of the following components in parts by weight: sodium silicate 160 parts, boil together agent 10
Part, 3 parts of magnesium sulfate, liquid caustic soda 140 parts, enzyme 14 parts and 673 parts of water.
The described agent that boils together is ethylenediaminetetraacetic acid.
The concentration of described liquid caustic soda (i.e. the sodium hydroxide of liquid, also known as Caustic soda, caustic soda) is 31%.
Preferably, enzyme is that cellulase, hemicellulase, lignoenzyme and pectase are so that the mass ratio of 3:2:1:2 mixes
Become.
The preparation method of the special degumming agent of aforementioned Boehmeria, comprises the steps:
First after sodium silicate 160 parts, the agent 10 parts that boils together, 3 parts of magnesium sulfate, liquid caustic soda 140 parts being added 673 parts of water dilutions, then
Put into enzyme 14 parts, stir, both obtain the saturated stock solution of the special degumming agent of Boehmeria.
The method that the special degumming agent of aforementioned Boehmeria carries out degumming to Boehmeria, particularly as follows:
Special for Boehmeria degumming agent saturated stock solution addition water is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14,
Then adding raw ramie 320 parts after diluent being heated to 90 DEG C and carry out degumming, usually time is 55 minutes.
Embodiment 5
A kind of special degumming agent of Boehmeria, wherein 1 ton of described degumming agent is grouped into by one-tenth: sodium silicate 150kg, boil together agent 10kg, sulfur
Acid magnesium 2kg, liquid caustic soda 150kg, enzyme 13kg and water 675kg.
Wherein, the agent that boils together described in is ethylenediaminetetraacetic acid.
The concentration of described liquid caustic soda (i.e. the sodium hydroxide of liquid, also known as Caustic soda, caustic soda) is 30%.
The mass ratio of described cellulase, hemicellulase, lignoenzyme and pectase is 3:1:1:2.
The preparation method of the special degumming agent of aforementioned Boehmeria, comprises the steps:
First after sodium silicate 150kg, the agent 10kg that boils together, magnesium sulfate 2kg, liquid caustic soda 150kg part being added the dilution of 675kg water, then
Put into enzyme 13kg, stir, both obtain the saturated stock solution of the special degumming agent of Boehmeria.
The method that the special degumming agent of aforementioned Boehmeria carries out degumming to Boehmeria, particularly as follows:
Special for Boehmeria degumming agent saturated stock solution addition water is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14,
Then adding raw ramie 300kg after diluent being heated to 85 DEG C and carry out degumming, usually time is 60 minutes.
The index that predominantly detects of the Boehmeria prepared is shown in Table 1.
Table 1 present invention several index of Boehmeria after degumming
People's Republic of China's textile industry standard (FZ/T 31001-1998) the Boehmeria factory degummed ramie of degummed ramie fiber reaches following
Require as top grade product, residual gum content≤3%, bundle fiber fracture strength >=4.0g/D, regain≤9.00%, oil content 0.8%～
Between 1.5%, fibre length >=700mm, it is seen that it is excellent that the every leading indicator of present invention Boehmeria after degumming all reaches degummed ramie
The standard of level product.Therefore, the degumming agent degumming effect of the present invention is notable.
Claims (11)
1. the special degumming agent of Boehmeria, it is characterised in that described degumming agent is composed of the following components in parts by weight: sodium silicate 130～170
Part, boil together agent 8～10 parts, magnesium sulfate 1～3 parts, liquid caustic soda 130～170 parts, enzyme 11～15 parts and water 655～695 parts.
The special degumming agent of Boehmeria the most according to claim 1, it is characterised in that described degumming agent is grouped by the one-tenth of following weight portion
Become: sodium silicate 140～160 parts, boil together agent 8～10 parts, magnesium sulfate 1～3 parts, liquid caustic soda 140～160 parts, enzyme 12～14
Part and water 665～685 parts.
The special degumming agent of Boehmeria the most according to claim 1, it is characterised in that described degumming agent is grouped by the one-tenth of following weight portion
Become: sodium silicate 150 parts, the agent 10 parts that boils together, 2 parts of magnesium sulfate, liquid caustic soda 150 parts, enzyme 13 parts and 675 parts of water.
The special degumming agent of Boehmeria the most according to claim 1, it is characterised in that described in the agent that boils together be metal-chelator.
The special degumming agent of Boehmeria the most according to claim 4, it is characterised in that described metal-chelator is citric acid or ethylenediamine
Tetraacethyl.
The special degumming agent of Boehmeria the most according to claim 1, it is characterised in that the concentration of described liquid caustic soda is 30～32%.
The special degumming agent of Boehmeria the most according to claim 1, it is characterised in that described enzyme is cellulase, hemicellulose
Enzyme, lignoenzyme and pectase are with (2～4): (1～2): 1:(2～3) mass ratio mix.
The special degumming agent of Boehmeria the most according to claim 7, it is characterised in that described cellulase, hemicellulase, wooden
The mass ratio of element enzyme and pectase is 3:1:1:2.
9. according to the preparation method of the special degumming agent of Boehmeria described in any one of claim 1-8, it is characterised in that comprise the steps:
First after the sodium silicate of described weight portion, the agent that boils together, magnesium sulfate, liquid caustic soda being added water dilution, then putting into enzyme, stirring is all
Even, obtain the saturated stock solution of the special degumming agent of Boehmeria.
10. the method for a China grass degumming, it is characterised in that the special degumming agent of Boehmeria that claim 9 is prepared saturated former
Liquid adds water and is diluted obtaining diluent, and described saturated stock solution and water volume ratio are 1:14, then diluent are heated to 80 DEG C-90 DEG C
Rear addition raw ramie 280-320 part carries out degumming, and usually time is 50～70 minutes.
The method of 11. China grass degummings according to claim 10, it is characterised in that described raw ramie is 300 parts, described usually time
It it is 60 minutes.
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| CN201610202506.XA CN105734684A (en) | 2016-04-01 | 2016-04-01 | Degumming agent special for ramie and preparation method and application of degumming agent |
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| CN201610202506.XA CN105734684A (en) | 2016-04-01 | 2016-04-01 | Degumming agent special for ramie and preparation method and application of degumming agent |
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Cited By (2)
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| CN107385523A (en) * | 2017-07-19 | 2017-11-24 | 苏州凯邦生物技术有限公司 | A kind of biological enzyme jute fiber degumming agent |
| CN113718541A (en) * | 2021-07-13 | 2021-11-30 | 大连工业大学 | Preparation method of intrinsic hydrophobic oleophylic nanocellulose |
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Application publication date: 20160706 |